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3 years ago

Please help me on the picture above. I will give points for people who help.

Mathematics

2 answers:

Jobisdone [24]3 years ago

6 0

Answer:

I believe the one you selected is correct. A negative plus a negative makes a positive meaning you start at -2 and end with +2

vovikov84 [41]3 years ago

6 0

Answer:

Answer choice b. is correct. You have it right.

Step-by-step explanation:

You go left 2 because of the negative sign. Since you are subtracting a negative number, you add the opposite, so you add 4.

-2-(-4)

-2+4

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What is <br><img src="https://tex.z-dn.net/?f=8.4%20-%204.2" id="TexFormula1" title="8.4 - 4.2" alt="8.4 - 4.2" align="absmiddle

STALIN [3.7K]

Answer:

4.2

Step-by-step explanation:

$\mathrm{Write\:the\:numbers\:one\:under\:the\:other,\:line\:up\:the\:decimal\:points.}$

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$\mathrm{Place\:the\:decimal\:point\:in\:the\:answer\:directly\:below\:the\:decimal\:points\:in\:the\:terms}$

$\frac{\begin{matrix}\space\space&8&\textbf{.}&4\\ -&4&\textbf{.}&2\end{matrix}}{\begin{matrix}\space\space&\space\space&\textbf{.}&2\end{matrix}}$

$\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:8-4=4$

$\frac{\begin{matrix}\space\space&\textbf{8}&.&4\\ -&\textbf{4}&.&2\end{matrix}}{\begin{matrix}\space\space&\textbf{4}&.&2\end{matrix}}$

$=4.2$

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